I think there is enough element to the Caplan analysis. Caplan probably cannot conceive of another form of education. He regards individuals as fixed assets incapable of growth and development. Schooling can only signal fitness for particular employment; it cannot transform the individual. Dewey's and Freire's conceptions of education are ruled out of order given an IQ-based hierarchical model of human worth.

Here’s Robin Hanson on education: School can have people practice habits that will be useful in jobs, such as showing up on time, doing what you are told…figuring out ambiguous instructions and accepting being frequently and publicly ranked…Schools work best when they set up [a] process wherein...